Current stochasticity is not completely disabled

[jonasteuwen]

Is your feature request related to a problem? Please describe.
Better seeding, disabling other sources of non-stochasticity.

Describe the solution you'd like

• https://twitter.com/kastnerkyle/status/1473361479143460872?s=21. Pytorch lightning also has a proper seed_everything.
• Likely also requires a test to see if randomly generated masks do generate the same mask when seeding is fixed.